The incredible self-heating pants that trimmed your bottom are back… And this time they"re after your bingo wings

Heat yourself thin! The hot pants that trimmed your bottom are back… And this time they're after your bingo wings

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UPDATED:

00:56 GMT, 22 October 2012

Women keen for a quick fix flocked to buy Zaggora's so-called miracle HotPants when they launched last year.

Half a million pairs of their heating shorts were sold in 16 months across 110 countries as women everywhere hoping they could heat themselves thinner.

And now, Zaggora, the firm behind the pants is back – and this time they are after your bingo wings.

Top form: Zaggora's new upper body range claims to target problem areas like arms, chest, back and tummy

The new upper body range – blazers, bras and tops – joins the HotPants and leggings as part of the hi-tech collection of products that the manufacturers claim can assist wearers to burn 18 per cent more calories across a workout than if you wore regular workout gear.

Zaggora say that their products work by increasing perspiration, with results 'lab-proven' by scientists after researchers from the Chelsea School of Sport at Brighton University reported weight loss to be four times greater in subjects who exercised wearing the HotPants.

The Hot Top is one of four new pieces joining the HotPants in Zaggora's product range. RIGHT: The hooded Body Blazer has an iPod holder in the arm and thumbholes to keep the sleeves in place and the hands warm

The core temperature in wearers of HotPants – said to include celebrities like Denise Richards, Tess Daly, Kristin Cavallari and Natalia Vodianova along with the regular folk – increased by an average of 18 per cent compared to the control, with effects ongoing after activity ceased, they claim.

The new upper body range – which includes the Body Blazer, hooded Body Blazer, Coola bra and Hot Top to target arms, back and tummy – uses the same Celu-Lite fabric technology as the HotPants.

Zaggora say it is designed to 'harness the body's natural heat' during activity in order to help increase core temperature and calorie burn.

Hot property: The Zaggora upper body range is on sale now at zaggora.com priced from 30

'Each product has been developed to offer time-pressed women smart solutions to getting active, from ramping up energy expenditure to get the most from their time at the gym to incorporating fast-wicking, odour absorbing fabrics,' they said.